--  @testpoint:opengauss关键字privileges(非保留)，作为函数名

--关键字不带引号-成功
drop function if exists privileges;
create function privileges(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function privileges;
--关键字带双引号-成功
drop function if exists "privileges";
create function "privileges"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function "privileges";
--关键字带单引号-合理报错
drop function if exists 'privileges';
create function 'privileges'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `privileges`;
create function `privileges`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/